Steel framing for mine-shafts.



Patented Feb. 18, 1919.

2 SHEE SHEET l.

0. D. MCCLURE.

STEEL FRAMING Foa Mme sHAFTs.

APPUCATION FILED 0CT. 30. 1916.

www

0. D. MCCLUBE.

STEEL FRAMING FOR MINE SHAFTS.

APPLlcAmN FILED OCT. 3o. 1916.

l 29@ El Patented Feb; 18, 1919.

2 SHEES-SHEEI 2.

ORA D. MCCLURE, OF ISHPEMING, MICHIGAN.

STEEL FRAMING FCR MINE-SHAFTS.

Specification of Letters Patent.

`Patented Feb. 18, 1919.

Application led October 30, 1916. Serial No. 128,418.

To all whom t may concern.'

Be it known that I, ORA D. MCCLURE, a citizen of the United State-s, anda resident of lshpeining, county of Marquette, and State of Michigan,have invented certain new and useful Improvements in Steel Framings forinline-Shafts, of which the following is a full, clear, and exactdescription.

The present invention relates to steel framing for supporting thelining, cage guides and the like of mine shafts. In accordance with thepresent practice, the framing of mine shafts, whether of wood or steel,comprises a series of horizontal frames or so called sets with verticalframe members interposed between the sets. Each horizontal frame or setcomprises outer side members arranged closely adjacent the wall of themine shaft and cross members for supporting the cage guides and thelike. Usually the side members of the sets are connected to one anotherat the corners thereof, and also, at such points, to the ends ofvertical members which are interposed between the sets. In the connedquarters of a mine shaft it is difficult to support the heavy framemembers of the sets and properly join them to one another and to theends of the vertical spacing members.

The resent invention seeks to overcome this difculty and provide aconstruction in which the frame members of the sets can be readilysupported and secured in position within the mine shaft and in whichstrong securing joints can be readily formed between the members of theframe work. The invention consists in the features of improvementhereinafter set forth illustrated in the preferred form in theaccompanying drawings and more particularly pointed out in the appendedclaims.

1n the drawings, Figure 1 is a horizontal section of the improvedconstruction taken on the line 1 1 of Fig. 2. Fig. 2 is a verticalsection on the line 2 2 of Fig. 1. Fig. 3 is an inverted plan detail,parts being shown in section on the line 3 3 of Fig. 2. Fig. 4 is adetail section on the line 4 4 of Fig. 3.

As shown, each horizontal frame or set comprises side members 10 whichare preferably formed of I-beams having their webs horizontally disposedand their edge flanges vertical. The side members 10 of the horizontalframe or set preferably extend continuously between the corners thereof.The ends of the frame members at the corners are mitered or beveled atan angle of 15o and are connected by angle brackets 11. Each of theseangle brackets is securely riveted to one of the side members and isbolted to the adjacent side member when the frame is assembled withinthe mine shaft. To strengthen the horizontal web portions of the I-beams10 angle bars 12 having vertically disposed flanges are centrallyriveted to the upper and lower faces thereof.

Each horizontal frame or set carries cross beams and cage guides whichcan be variously arranged to suit different conditions. In theconstruction shown a cross beam 13 extends between two opposite sidemembers 10 and a cross beam 14 extends between the beam 13 and one ofthe side members. Angle brackets 15 are riveted to the ends of the crossbeams and, when the frame is assembled within the mine shaft, are boltedto the vertical flanges of the I-beams 10 and to the web of the crossbeam 13.

The vertical members for connecting or spacing the frames or sets arenot connected at their ends thereto but extend continuously past thesame. Preferably these vertical members are in the form of heavy anglebars 16 which are arranged koutside of and extend past the corners ofthe horizontal frames or sets and are provided with angle brackets 17for supporting the frame members 10 at their ends or at the corner ofeach set. Each of the angle brackets is securely riveted to the verticalspacing or connecting angle bar 16 and extends beneath the beveled endsof the side members 10. To provide a firm support for the side members10 on the bracket 17, spacing plates 18 are preferably secured to theadjacent beveled ends of the side members. These spacing plates aresecurely riveted to the end of one of the side members and are bolted tothe end of the adjacent side member when the latter are assembled in themine shaft. Connecting bolts 19 extend centrally through the s acingplates and the supporting brackets 1 The abutting ends of the verticalangle members 16 are securely connected at points intermedia-te theseparate sets by fish plates 20 which are riveted to one of the members16 and when the parts are assembled in the mine shaft are bolted to theadjacent member. Vertical channel bars '21 for supporting wooden cageguides 22 also extend between the separate sets. llhese channel bars areconnected to the cross `bars 13 and 14e by brackets Q3, and to thevertical flanges of the side members 10 by bolts 2li having spacingsleeves 25 thereon.

n assembling the framing in the mine shaft as the latter is excavated,the vertical corner spacing members 16 with the brackets 17 rivetedthereto are first placed in position. The heavy side members 10 are thenput in place with their ends resting upon the brackets 17. The latterthus serve to support the heavy side members 10 while they are beingbolted to one another and to thebrackets. YVhen the mine shaft isfurther excavated, another series of vertical members 1G will be securedto the lower ends of the vertical members already in position andanother horizontal frame or set mounted thereon. in this way the mineframe work can be readily and economically assembled in the confinedquarters of the mine shaft and strong joints formed between the membersthereof.

If necessary to sustain the walls of the shaft, a. wooden lagging orlining can be interposed between the horizontal frames or sets. Thevertical flanges of the beams 10 and of the angle bars 12 will serve tohold the boards of this wooden lagging or lining in place. If desired,the shaft may be provided with a concrete lining, which will bestrengthened and held in place by the vertical and horizontal members ofthe frame work.

It is obvious that changes may be made in the details set forth Withoutdeparture from the essentials of the invention as defined in the claims.

I claim as my invention 1. rhe method of constructing` the framing ofmine shafts which consists first in placing within the shaft a set ofvertical spacing` members having supporting brackisoliert ets fixedthereto intermediate their end portions, then lowering upon saidbrackets horizontal side frames and securing the abutting ends of saidside frames to aid said brackets, and thereafter successively securingto the lower ends of said vertical members addi tional vertical membershaving brackets fixed thereto intermediate their end portions andlowering upon and securing to said brackets horizontal side frames.

2. A steel framing for mine shafts, comprising a series of verticallyarranged spacing members formed of angle bars and having bracketssecured thereto in the angles of said bars intermediate their ends, atwhich points said vertical members are connected, and a series ofsuper-posed horizontal frames formed of continuous bars having theirends connected to each other and disposed within the angles of saidspacing bars and secured to and rest-ing on top of said brackets.

3. 1n a steel framing for mine shafts, the combination of a number ofhorizontal frames, comprising side members connected at their ends,vertical spacing members formed of angle bars extending continuouslypast and outside of the corners of said frames, and connected togetherat points in termedia-te said frames, and inwardly projecting supportingbrackets secured to said vertical angle bars and extending beneath theends of said side members, substantially as described.

et. In a` steel framing for mine shafts, the combination of a number ofhorizontal frames comprising structural side members having horizontalwebs, vertical flanges and mitered ends, vertical angle bars extendingpast and outside the corners of said frames, brackets secured to saidangle bars and projecting inwardly beneath the ends of said sidemembers, and space plates interposed between and secured to said sidemembers and said brackets, substantially as described.

ORA D. MOCLURE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

